Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

Four-dimensional domain decomposition for the factorization of the fermion determinant

Aug 10, 2022, 3:40 PM
20m
CP1-HSZ/1st-1.001 - HS5 (CP1-HSZ)

CP1-HSZ/1st-1.001 - HS5

CP1-HSZ

50
Oral Presentation Theoretical Developments and Applications beyond Particle Physics Theoretical Developments

Speaker

Mr Matteo Saccardi (Università degli Studi di Milano-Bicocca)

Description

The non-local dependence of the fermion determinant on the gauge field limits our ability of simulating Quantum Chromodynamics on the lattice. Here we present a factorization of the gauge field dependence of the fermion determinant based on an overlapping four-dimensional domain decomposition of the lattice. The resulting action is block-local in the gauge and in the auxiliary bosonic fields. Possible applications are multi-level integration, master field simulations, and more efficient parallelizations of Monte Carlo algorithms and codes.

Primary authors

Mr Matteo Saccardi (Università degli Studi di Milano-Bicocca) Prof. Leonardo Giusti (Università degli Studi di Milano-Bicocca)

Presentation materials